Glamorgan
Solar panels in Aberdare, with the numbers shown.
About 5,980 kWh a year from 12 panels in Aberdare, £6,360 installed, with your system designed on a free 30-minute video call.
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What a roof in Aberdare can generate
Aberdare's best month is May, at 119.9 kWh per kWp; December manages 27.8. Over the year that comes to 940 kWh per kWp, level with our Glamorgan county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 31.2 |
| February | 48.8 |
| March | 85.9 |
| April | 111 |
| May | 120 |
| June | 115 |
| July | 115 |
| August | 100 |
| September | 88.8 |
| October | 57 |
| November | 39.1 |
| December | 27.8 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 940 kWh per kWp in Aberdare against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Aberdare 2% above it.
How Aberdare compares
Among the places we publish figures for, Aberdare is one of 32 Glamorgan towns we track, and it ranks 29th of 32 for solar yield. It is a medium town in the House of Commons Library classification, with 38,502 residents, and its roofs see 2.57 peak sun hours a day across the year. That drives the standard 12 panel model to 5,978 kWh of generation, of which around 5,042 kWh is exported at 12p for £605 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Aberdare's own yield.
Aberdare sits within Rhondda Cynon Taf, its local planning authority, and the House of Commons Library classes it as a medium town.
The charger is in the installed price but left out of payback: charging savings depend on your mileage and tariff, which the design call models properly.
Your real roof and usage, worked through on a free 30-minute video call. Use the full form or leave three details below.
Price this for your roof
Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
The figures use PVGIS for the centre of Aberdare (51.7154, -3.45216), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Connecting solar to the Aberdare network
Aberdare sits in National Grid Electricity Distribution's South Wales licence area, so NGED is the network operator (DNO) any solar panels or battery here are registered with.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to NGED within 28 days of commissioning, with no prior approval.
Anything bigger is a G99 case and is applied for first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
Sources: NESO DNO licence areas (3 May 2024); NGED, guaranteed standards of performance table, checked 25 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Aberdare
A heat pump in Aberdare
Solar and a heat pump pull in opposite directions through the year: Aberdare's roofs make 930 kWh from November to February on a 12-panel system, and 2,860 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Aberdare
From April to September, 69% of a Aberdare roof's yearly output arrives, peaking at about 760 kWh in May on 12 panels. A car parked at home in daylight can soak up what the house, at around 70 kWh of daytime use that month, cannot.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Aberdare
Guidance is nationwide, so the benchmarks hold in Aberdare: repair costs, service scope, and when the inverter is the real fault.
Solar in Aberdare: your questions answered
What could a roof in Aberdare generate?
PVGIS puts a roof in Aberdare at 940 kWh per kWp a year, 2.57 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 5,980 kWh a year, most of it between April and September.
What would 12 solar panels cost in Aberdare?
£6,360 for 12 panels (6.36 kWp), the same as in every other place we cover, because solar is priced at £1,000 per kWp installed rather than by area. A battery adds its own installed price on top. Where Aberdare differs is output: about 5,980 kWh a year from that system.
Do I need permission from the DNO for solar in Aberdare?
Usually not in advance. NGED, the network operator for Aberdare, only needs a G98 notification within 28 days of commissioning for systems up to 3.68kW per phase. Bigger inverter or battery outputs need G99 approval first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. "See our DNO explainer.
How much would export pay on a system in Aberdare?
It is exported. With typical use and no battery, about 5,042 kWh of the 5,980 kWh a 12-panel system makes in Aberdare goes to the grid, around £605 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Do solar panels work in winter in Aberdare?
Yes, at a lower level. PVGIS gives Aberdare 27.8 kWh per kWp in December and 31.2 in January, so a 12-panel system makes about 180 kWh and 200 kWh in those months, against 760 kWh in May. Winter output mostly covers daytime use rather than exporting.
How Aberdare compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Aberdare.
| Town | kWh per kWp a year | vs Aberdare |
|---|---|---|
| Aberdare | 940 | this town |
| Mountain Ash | 948 | +8 kWh |
| Merthyr Tydfil | 942 | +2 kWh |
| Treorchy | 925 | −15 kWh |
| Rhondda | 882 | −58 kWh |
| Tonypandy | 956 | +16 kWh |
| Porth | 961 | +21 kWh |
PVGIS v5.2 for each town centroid, identical assumptions throughout. A few kWh either way is weather-year noise; a spread beyond about 30 kWh per kWp is real geography.
Also for Aberdare: Solar panels in Aberdare from OVO Solar & Battery
See a number before you speak to anyone
Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
Do solar panels increase home value? What the actual data shows
The largest UK study found a 6.1% to 7.1% sale price premium. Here is the full picture.
Read the guide →Adding a battery to solar panels you already own
Retrofitting a battery to working solar is straightforward. The paperwork is where people trip up.
Read the guide →Three phase and EV charging: what actually changes
Three phase buys 22kW charging. Most cars cannot use it, and load balancing usually solves the real problem.
Read the guide →Which homes suit a heat pump, and which need work first
The trial data says no property type is unsuitable. Design quality decides the outcome.
Read the guide →The price cap explained, and what it does to solar payback
The cap limits unit rates, not bills. That changes what solar payback means.
Read the guide →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
Read the guide →Get my free quote
Takes about two minutes. We call or text within one working day to book your free 30-minute video design call at a time that suits you. We design it around your roof and your numbers, and our MCS-certified, fully insured installation teams install it.